[deliverable/linux.git] / include / media / blackfin / ppi.h

/*
 * Analog Devices PPI header file
 *
 * Copyright (c) 2011 Analog Devices Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _PPI_H_
#define _PPI_H_

#include <linux/interrupt.h>
#include <asm/blackfin.h>
#include <asm/bfin_ppi.h>

/* EPPI */
#ifdef EPPI_EN
#define PORT_EN EPPI_EN
#define PORT_DIR EPPI_DIR
#define DMA32 0
#define PACK_EN PACKEN
#endif

/* EPPI3 */
#ifdef EPPI0_CTL2
#define PORT_EN EPPI_CTL_EN
#define PORT_DIR EPPI_CTL_DIR
#define PACK_EN EPPI_CTL_PACKEN
#define DMA32 0
#define DLEN_8 EPPI_CTL_DLEN08
#define DLEN_16 EPPI_CTL_DLEN16
#endif

struct ppi_if;

struct ppi_params {
	u32 width;              /* width in pixels */
	u32 height;             /* height in lines */
	u32 hdelay;             /* delay after the HSYNC in pixels */
	u32 vdelay;             /* delay after the VSYNC in lines */
	u32 line;               /* total pixels per line */
	u32 frame;              /* total lines per frame */
	u32 hsync;              /* HSYNC length in pixels */
	u32 vsync;              /* VSYNC length in lines */
	int bpp;                /* bits per pixel */
	int dlen;               /* data length for ppi in bits */
	u32 ppi_control;        /* ppi configuration */
	u32 int_mask;           /* interrupt mask */
};

struct ppi_ops {
	int (*attach_irq)(struct ppi_if *ppi, irq_handler_t handler);
	void (*detach_irq)(struct ppi_if *ppi);
	int (*start)(struct ppi_if *ppi);
	int (*stop)(struct ppi_if *ppi);
	int (*set_params)(struct ppi_if *ppi, struct ppi_params *params);
	void (*update_addr)(struct ppi_if *ppi, unsigned long addr);
};

enum ppi_type {
	PPI_TYPE_PPI,
	PPI_TYPE_EPPI,
	PPI_TYPE_EPPI3,
};

struct ppi_info {
	enum ppi_type type;
	int dma_ch;
	int irq_err;
	void __iomem *base;
	const unsigned short *pin_req;
};

struct ppi_if {
	struct device *dev;
	unsigned long ppi_control;
	const struct ppi_ops *ops;
	const struct ppi_info *info;
	bool err_int; /* if we need request error interrupt */
	bool err; /* if ppi has fifo error */
	void *priv;
};

struct ppi_if *ppi_create_instance(struct platform_device *pdev,
			const struct ppi_info *info);
void ppi_delete_instance(struct ppi_if *ppi);
#endif
Commit	Line	Data
63b1a90d SJ	1	/*
	2	* Analog Devices PPI header file
	3	*
	4	* Copyright (c) 2011 Analog Devices Inc.
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License version 2 as
	8	* published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	18	*/
	19
	20	#ifndef _PPI_H_
	21	#define _PPI_H_
	22
	23	#include <linux/interrupt.h>
45b82596 SJ	24	#include <asm/blackfin.h>
45b82596 SJ	25	#include <asm/bfin_ppi.h>
63b1a90d	26
45b82596	27	/* EPPI */
63b1a90d SJ	28	#ifdef EPPI_EN
63b1a90d SJ	29	#define PORT_EN EPPI_EN
45b82596	30	#define PORT_DIR EPPI_DIR
63b1a90d SJ	31	#define DMA32 0
	32	#define PACK_EN PACKEN
	33	#endif
	34
45b82596 SJ	35	/* EPPI3 */
	36	#ifdef EPPI0_CTL2
	37	#define PORT_EN EPPI_CTL_EN
	38	#define PORT_DIR EPPI_CTL_DIR
	39	#define PACK_EN EPPI_CTL_PACKEN
	40	#define DMA32 0
	41	#define DLEN_8 EPPI_CTL_DLEN08
	42	#define DLEN_16 EPPI_CTL_DLEN16
	43	#endif
	44
63b1a90d SJ	45	struct ppi_if;
	46
	47	struct ppi_params {
45b82596 SJ	48	u32 width; /* width in pixels */
	49	u32 height; /* height in lines */
	50	u32 hdelay; /* delay after the HSYNC in pixels */
	51	u32 vdelay; /* delay after the VSYNC in lines */
	52	u32 line; /* total pixels per line */
	53	u32 frame; /* total lines per frame */
	54	u32 hsync; /* HSYNC length in pixels */
	55	u32 vsync; /* VSYNC length in lines */
	56	int bpp; /* bits per pixel */
	57	int dlen; /* data length for ppi in bits */
	58	u32 ppi_control; /* ppi configuration */
	59	u32 int_mask; /* interrupt mask */
63b1a90d SJ	60	};
	61
	62	struct ppi_ops {
	63	int (attach_irq)(struct ppi_if ppi, irq_handler_t handler);
	64	void (detach_irq)(struct ppi_if ppi);
	65	int (start)(struct ppi_if ppi);
	66	int (stop)(struct ppi_if ppi);
	67	int (set_params)(struct ppi_if ppi, struct ppi_params *params);
	68	void (update_addr)(struct ppi_if ppi, unsigned long addr);
	69	};
	70
	71	enum ppi_type {
	72	PPI_TYPE_PPI,
	73	PPI_TYPE_EPPI,
45b82596	74	PPI_TYPE_EPPI3,
63b1a90d SJ	75	};
	76
	77	struct ppi_info {
	78	enum ppi_type type;
	79	int dma_ch;
	80	int irq_err;
	81	void __iomem *base;
	82	const unsigned short *pin_req;
	83	};
	84
	85	struct ppi_if {
0a6824bc	86	struct device *dev;
63b1a90d SJ	87	unsigned long ppi_control;
	88	const struct ppi_ops *ops;
	89	const struct ppi_info *info;
d78a4882 SJ	90	bool err_int; /* if we need request error interrupt */
d78a4882 SJ	91	bool err; /* if ppi has fifo error */
63b1a90d SJ	92	void *priv;
	93	};
	94
f7d0e6d6 SZ	95	struct ppi_if ppi_create_instance(struct platform_device pdev,
f7d0e6d6 SZ	96	const struct ppi_info *info);
63b1a90d SJ	97	void ppi_delete_instance(struct ppi_if *ppi);
63b1a90d SJ	98	#endif